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9844 LEGO Mindstorms NXT Light Sensor thumbnail image

9844 LEGO Mindstorms NXT Light Sensor
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9844 LEGO Mindstorms NXT Light Sensor
  • Light Sensor thumbnail
  • Light Sensor thumbnail

LEGO 9844 Light Sensor is a Mindstorms set valued at $17 for new and sealed sets, down 32% from an original retail price of $24.99. The set retired in February 2016. Used copies are valued between $8 and $11 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Light Sensor since September 2016. Very high accuracy
LEGO 9844 Light Sensor is a Mindstorms NXT accessory released in 2006, containing 1 piece. It is a plug-in sensor for the NXT programmable brick from sets 8527 and 8547. The unit measures ambient and reflected light intensity, enabling functions like line following and light/dark threshold detection. It connects to an NXT sensor port and was sold as a standalone component to expand NXT robots.

A new and sealed Light Sensor is currently valued at around $17. The average used price is $9 for those in good overall condition. Based on current trends, this set could be valued near $17 within the next year. The set was available for 100 months, from October 2007 to February 2016.
Light Sensor is a rare LEGO set. We have not seen set 9844-1 available in good/new condition online or in retail stores for over 2 years. Given how hard it is to find, the estimated value in new condition of $16.99 may not reflect its true collectible worth.

For Sale (New/Sealed)

There are currently no new/sealed listings available for 9844 Light Sensor at this time.
All regions

For Sale (Used)

 (US) Used - LOT Of 2 Lego Mindstorms NXT Electric Touch Sensors Part 53793 9797 8527 9844
$7.50
--16.0%
(US) Used - Not tested $8.81
(US) Used - Mindstorms NXT Electric Sound Sensor Part 55963 9797 8527 9844
$8.93
(US) Used - Mindstorms Light Sensor (9844-1) Tested and Working
$9.99
(US) Used - Mindstorms Piece #9844-1: Light Sensor NOT TESTED Sold As Is Free Shipping
$10.00

Sets in Mindstorms / NXT

8527 Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 577
Availability Retired
8527 LEGO Mindstorms NXT
Retail $249.99
Value $405.08
Growth  +62.0%
Annual growth 2.3%

8529 Connector Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 7
Availability Retired
8529 LEGO Connector Cables for Mindstorms NXT
Retail $9.99
Value $19.98
Growth  +100.0%
Annual growth 3.7%

8528 Converter Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 3
Availability Retired
8528 LEGO Converter Cables for Mindstorms NXT
Retail $9.99
Value $36.39
Growth  +264.3%
Annual growth 9.6%

9798 Rechargeable Battery

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9798 LEGO Mindstorms NXT Rechargeable Battery
Retail $54.99
Value $59.29
Growth  +7.8%

9833-2 Transformer

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9833-2 LEGO Mindstorms NXT Transformer
Retail $23.99
Value $31.80
Growth  +32.6%
Annual growth 2.1%

9841 NXT Intelligent Brick

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9841 LEGO Mindstorms NXT Intelligent Brick
Retail $169.99
Value $326.87
Growth  +92.3%
Annual growth 6.5%

9842 Interactive Servo Motor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9842 LEGO Mindstorms NXT Interactive Servo Motor
Retail $24.99
Value $28.24
Growth  +13.0%
Annual growth 2.6%

9843 Touch Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9843 LEGO Mindstorms NXT Touch Sensor
Retail $24.99
Value $32.36
Growth  +29.5%
Annual growth 3.7%

9845 Sound Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9845 LEGO Mindstorms NXT Sound Sensor
Retail $34.99
Value $57.66
Growth  +64.8%
Annual growth 4.9%

9846 Ultrasonic Sensor

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9846 LEGO Mindstorms NXT Ultrasonic Sensor
Retail $39.99
Value $45.76
Growth  +14.4%
Annual growth 1.3%

9847 Bluetooth Dongle

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
9847 LEGO Mindstorms NXT Bluetooth Dongle
Retail $32.50
Value $32.00

Compass Sensor for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 1
Availability Retired
LEGO Compass Sensor for Mindstorms NXT
Retail $54.99
Value $73.84
Growth  +34.3%
Annual growth 3.7%

My Collection

Light Sensor Reviews

24 reviews
4.6
Collectors
Investors
LEGO Engineering
“The Light Sensor is one of the two sensors that give your robot vision [The Ultrasonic Sensor is the other]. The Light Sensor enables your robot to distinguish between light and dark. It can read the light intensity in a room and measure the light intensity of colored... More surfaces.”
Full review at www.legoengineering.com

About Mindstorms NXT

The LEGO Mindstorms NXT programmable robotics kit released by LEGO in July 2006, replacing the first-generation LEGO Mindstorms kit. The kit also includes NXT-G, a graphical programming environment that enables the creation and downloading of programs to the NXT.

NXT consists of 30 sets that ran from 2006 to 2011. As of today, 8527 Mindstorms NXT is the most valuable NXT set with an estimated new/factory sealed value of $405.
Read more
Detect light intensity!

The Light Sensor assists in helping your robot to "see." Using the NXT Brick (sold separately), it enables your robot to distinguish between light and dark, as well as determine the light intensity in a room or the light intensity of different colors.

Includes 1 Light Sensor.
Does not include connector cable.
This is the individual component, and does not include the NXT Intelligent Brick, software or any accessories. It requires the complete LEGO® MINDSTORMS® NXT set (#8527 or #8547) for use.
Description provided by LEGO©